Emetophilia is deriving sexual pleasure from vomit. There are different instances, several of which are:
1) Hearing someone vomit
2) Seeing someone vomit
3) Being vomited on
4) Vomiting on someone else
5) Vomiting alone
Emetophilia is not only about being vomited on. It can also just be sights and sounds. Sometimes, emetophilia can be linked in with erotic humiliation, which is also sometimes the case with urolagnia.
Someone who feels immense sexual pleasure from the witnessing the act or sound of puking. Said personmay also become extremely turned on by puking, or being puked on.
Dang man! You're soooo lucky your girlfriend's an emetophile!
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.